Halakhah as Cultural Memory: The Evolution of Life in the Doctrine of Piku’aḥ Nefesh

This article examines the historical expansion of the halakhic doctrine of piku’aḥ nefesh from its classical association with the preservation of biological life to its application in cases involving apostasy, religious identity, and communal continuity. Beginning with talmudic formulations in Yoma 85b, the study traces the development of the concept through responsa and legal writings from the medieval and early modern periods, focusing on the dispute between the Rashba and Rabbi Joseph Karo regarding the permissibility of violating Shabbat to prevent conversion. It argues that later authorities gradually reconceptualized apostasy not merely as transgression but as an existential threat warranting extraordinary legal intervention. This process culminated in descriptions of apostasy as mitah nitzḥit (“eternal death”) and, ultimately, as a form of piku’aḥ nefesh itself. Methodologically, the article combines legal history with theories of collective memory, drawing particularly on the work of Yosef Hayim Yerushalmi and subsequent scholarship on cultural memory. It contends that historical experiences of forced conversion, martyrdom, expulsion, and communal loss during the Crusades and the Iberian persecutions became embedded within Jewish collective consciousness and were transmitted through halakhic discourse. The article proposes that halakhah functioned not only as a legal system but also as a medium of cultural memory. By examining the emergence of spiritual piku’aḥ nefesh, it demonstrates how collective memory can reshape legal concepts and redefine the meaning of life, danger, and survival within a religious tradition.